Inspect source HTML for common SEO signals

Paste source HTML. This analyzes supplied markup only; it does not fetch a live URL, render JavaScript, inspect HTTP status, or determine what a search engine indexed.

Page-source HTML

—Title chars

—Canonical links

—H1 elements

—JSON-LD blocks

Title

—

Description

—

Canonical

—

Robots

—

Hreflang

—

Structured data

—

Images

—

Use this as pre-publish QA. Indexing also depends on the live response, crawlability, rendered content, canonical evaluation and search-engine systems outside this browser.

Browser-local technical SEO workflow

v10.80 connects metadata, SERP drafting, robots, canonical, hreflang, sitemap and structured-data jobs without requiring an account or sending pasted source to a backend. Existing v5.9/v10.0 SEO generators remain intact while new inspectors make it easier to review a finished head or annotation set.

Search-engine boundaries

Local markup checks cannot know what a crawler fetched, rendered, indexed or selected as canonical. Search engines may rewrite title links/snippets, choose different canonicals, ignore invalid or ineligible structured data, and apply live HTTP/robots conditions that are not present in pasted text. Treat these tools as pre-publish QA, then verify live behavior with the relevant search-engine tools.

How to use this SEO HTML Inspector

Inspect pasted HTML for title, meta description, canonical, robots, hreflang, Open Graph, headings, images, and JSON-LD.

Enter, paste, upload, or choose the inputs shown in the tool above.
Adjust the available options for the result you need.
Review the output before copying, downloading, or using it elsewhere.

What this tool does

Paste page-source HTML to review common on-page SEO signals locally without fetching or crawling the live URL.

Practical tips and limits

Generated markup and metadata should describe content that is actually present on the page. Search engines decide eligibility and presentation independently.